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Register NowBile Acids, Fractionated LCMS
Create a Free Account to View PricesTurnaround Time: 5 - 10 days
CPT Code:
82542
Test Type: 1 mL Serum
Overview:
Use: This assay uses LC/MS-MS to quantify the free acid, glycine-conjugate and taurine-conjugate forms of cholic acid, chenodeoxycholic acid, deoxycholic acid, and ursodeoxycholic acid. Bile acids may be measured to investigate obstructive cholestasis in pregnancy.1 In addition, bile acids are required for cholesterol absorption, fat-soluble vitamin absorption, and to provide resistance to the overgrowth of intestinal bacteria.1 Bile acid levels may be reduced or elevated due to various genetic defects.
Methodology: High-pressure liquid chromatography/tandem mass spectrometry (HPLC/MS-MS)
Collection Details:
Collection Instructions:
Specimen: Serum (preferred) or plasma, frozen
Volume: 1 mL
Minimum Volume: 0.3 mL (Note: This volume does not allow for repeat testing.)
Container: Red-top tube, gel-barrier tube, lavender-top (EDTA) tube, or green-top (sodium heparin) tube
Collection: Serum/plasma must be separated from cells within two hours of venipuncture. Transfer serum/plasma to a plastic transport tube before freezing.
Storage Instructions: Refrigerate or freeze.